CN102146892B - Variable-speed ratio wind power speed increasing box - Google Patents
Variable-speed ratio wind power speed increasing box Download PDFInfo
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- CN102146892B CN102146892B CN2011100397347A CN201110039734A CN102146892B CN 102146892 B CN102146892 B CN 102146892B CN 2011100397347 A CN2011100397347 A CN 2011100397347A CN 201110039734 A CN201110039734 A CN 201110039734A CN 102146892 B CN102146892 B CN 102146892B
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- speed
- wind power
- variable
- increasing
- ratio wind
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to a variable-speed ratio wind power speed increasing box which comprises a fixed-speed ratio wind power speed increasing box and is characterized in that a final-stage output shaft of the fixed-speed ratio wind power speed increasing box is connected with a primary planet differential drive mechanism through a parallel shaft gear transmission mechanism; the planet differential drive mechanism comprises a planet carrier, a speed-adjusting drive shaft, a speed-adjusting drive device and a differential planet row, wherein the differential planet row consists of an inner gear ring, a planet wheel and a sun wheel; the planet carrier is used for transferring the power/the torque transferred by the parallel axis gear transmission mechanism to the differential planet row, and the rotating speed thereof is the input speed of the differential planet row; the sun wheel is connected with the speed-adjusting drive device through the speed-adjusting drive shaft to obtain the adjustable rotation speed; and the differential planet row is used for outputting the constant output speed formed by combining the adjustable rotation speed and the input speed via the inner gear ring through the output shaft of the speed increasing box. The variable-speed ratio wind power speed increasing box can realize that the variable rotation speed input of a low-speed shaft is changed into the fixed rotation speed output after being transferred by the wind power speed increasing box. The variable-speed ratio wind power speed increasing box can be widely applied to a wind power generator unit of a synchronous power generator for power generation.
Description
Technical field
The present invention relates to a kind of wind power speed-increasing gearbox, particularly about a kind of variable-speed ratio wind power speed increasing of the wind power generating set for synchronous generator generating.
Background technique
At present, conventional wind power speed-increasing gearbox all is the fixed speed ratio gear-box, is applicable to become the double-fed asynchronous type of oar or partly directly drives type.The double-fed asynchronous type of speed-changing oar-changing adopts double-fed asynchronous generator, and the frequency variator of electric energy needs 1/3 rated capacity that the double-fed asynchronous generator rotor sends just is convertible into the electric energy with synchronized.Speed-changing oar-changing directly drives type and adopts magneto alternator, and the electric energy that sends need to just be convertible into electric energy with synchronized with the current transformer of power capacity with generator.Therefore, how to omit current transformer and become present problem demanding prompt solution with regard to obtaining with the electric energy of synchronized.
Summary of the invention
For the problems referred to above, the purpose of this invention is to provide and a kind ofly need not the generator power current transformer, have the continuous variable speed ratio, realize that the speed change input can stablize the variable-speed ratio wind power speed increasing that is converted to the output of constant speed synchronous speed.
For achieving the above object, the present invention takes following technological scheme: a kind of variable-speed ratio wind power speed increasing, it comprises the fixed speed ratio wind power speed-increasing gearbox, it is characterized in that: the afterbody output shaft of described fixed speed ratio wind power speed-increasing gearbox connects one-level planetary differential speed regulating mechanism through a parallel-axes gears driving mechanism that is made of with the parallel axes driven gear the parallel axes driving gear; Described planetary differential speed regulating mechanism comprises planet carrier, speed governing live axle, is arranged on the speed-adjustable driving device of described variable-speed ratio wind power speed increasing outside, and is arranged by the differential planetary that ring gear, planet wheel and sun gear form; Described planet carrier will be passed to by the power/torque that described parallel-axes gears driving mechanism is passed to described differential planetary row, and its rotating speed is described differential planetary row input speed; Described sun gear connects described speed-adjustable driving device by described speed governing live axle, and described speed-adjustable driving device drives described sun gear makes it obtain the speed governing rotating speed; The constant output speed of formation was exported it by described ring gear after described differential planetary row was synthetic with speed governing rotating speed and input speed through the speedup box output shaft.
Described planetary differential speed regulating mechanism is the driving mechanism of two-freedom.
Described planetary differential speed regulating mechanism adopts the speed change mode of speed regulation of power dividing and continuous velocity ratio.
Described speed-adjustable driving device adopts variable displacement pump or the speed-adjustable motor that can export continuous variable speed driving force.
Described fixed speed ratio wind power speed-increasing gearbox adopt two-stage fixed speed ratio wind power speed-increasing gearbox and three grades of fixed speed ratio wind power speed-increasing gearboxes one of them.
The present invention is owing to taking above technological scheme, it has the following advantages: 1, the present invention is because employing is set up one-level planetary differential speed regulating mechanism behind existing fixed speed ratio wind power speed-increasing gearbox, by the planetary differential speed regulating mechanism is carried out speed regulating control, the speed ratio that can realize wind power speed-increasing gearbox changes within the specific limits, it is variable gear ratio, therefore, realize need not the generator power current transformer, just the input of lower velocity shaft variable speed can have been become fixed rotating speed output through the wind power speed-increasing gearbox transmission.2, the present invention is owing to adopting the planetary differential speed regulating mechanism to carry out speed regulating control, and is relatively double-fed asynchronous with traditional speed change or directly drive type, realized the output of motor head speed governing synchronous speed, makes that the wind-powered electricity generation unit can be stablized, reliable speed regulating control.The present invention can be widely used in the wind power generating set of synchronous generator generating.
Description of drawings
Fig. 1 is overall structure principle schematic of the present invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
As shown in Figure 1, the present invention includes fixed speed ratio wind power speed-increasing gearbox 1 of the prior art, it is characterized in that, the afterbody output shaft of fixed speed ratio wind power speed-increasing gearbox 1 is connected the parallel-axes gears driving mechanism that consists of through one by parallel axes driving gear 2 and is connected one-level planetary differential speed regulating mechanism 4 with the parallel axes driven gear.
Planetary differential speed regulating mechanism 4 comprises planet carrier 5, speed governing live axle 6, speedup box output shaft 7, is arranged on the speed-adjustable driving device 8 of variable-speed ratio wind power speed increasing of the present invention outside, and is arranged by the differential planetary that ring gear 9, planet wheel 10 and sun gear 11 form.Wherein, speed-adjustable driving device 8 by a speed governing actuation gear to Z
1Z
2Slow down Z
1, Z
2The number of teeth for gear mesh.Planet carrier 5 will be passed to by the power/torque that the parallel-axes gears driving mechanism is passed to differential planetary row, and its rotating speed is differential planetary row's input speed n
xSun gear 11 connects speed-adjustable driving device 8 by speed governing live axle 6, and speed-adjustable driving device 8 drives sun gear 11, makes sun gear 11 obtain to carry out the speed governing rotation speed n of speed change speed regulating control
aDifferential planetary row is with the speed governing rotation speed n
aWith input speed n
xForm constant output speed n after synthetic
bBy ring gear 9 it is exported output speed n through speedup box output shaft 7
bCan keep constant rotational speed to equal synchronous speed.Can connect synchronous generator behind the variable-speed ratio wind power speed increasing of the present invention, in order to be adapted to adopt the needs of the wind-powered electricity generation unit of synchronous generator.
In above-described embodiment, planetary differential speed regulating mechanism 4 is the driving mechanism of two-freedom.Planetary differential speed regulating mechanism 4 adopts the speed change mode of speed regulation of power dividing and continuous velocity ratio, and the speed ratio of whole wind power speed-increasing gearbox is changed on request.
In the various embodiments described above, it is the power equipment of the exportable continuous variable speeds such as variable displacement pump or speed-adjustable motor that speed-adjustable driving device 8 can adopt driving force, and obtains needed driving rotation speed n by speed-adjusting and control system control speed-adjustable driving device 8 of the prior art
t, wherein, it is outside that speed-adjusting and control system is arranged on variable-speed ratio wind power speed increasing of the present invention.Like this, the user just can obtain corresponding speed governing according to the requirement control of required variable gear ratio and drive rotation speed n
tOutput, thus realize the continuous variable gear ratio transmission in speed adjustable range (can be determined by wind-powered electricity generation unit dynamic property) requires of whole wind power speed-increasing gearbox.
In the various embodiments described above, fixed speed ratio wind power speed-increasing gearbox 1 can adopt two-stage fixed speed ratio wind power speed-increasing gearbox, also can adopt three grades of fixed speed ratio wind power speed-increasing gearboxes.
The present invention in use, the wind wheel in the wind power generating set is to fixed speed ratio wind power speed-increasing gearbox 1 input power/torque, its input speed is n
1, behind fixed speed ratio wind power speed-increasing gearbox 1 and parallel-axes gears driving mechanism, power/torque is passed to the planet carrier 5 of planetary differential speed regulating mechanism 4, and (its rotating speed is n
x), velocity ratio i then
X1=n
x/ n
1=definite value.The output speed of ring gear 9 is n
b, the speed governing rotating speed of sun gear is n
a, by the differential planet transmission characteristic as can be known: gear ratio i
BxFor:
i
bx＝n
b/n
x＝u
0/(1+u
0)+n
a/[(1+u
0)n
b]， (1)
Wherein, characteristic coefficient u
0=Z
b/ Z
aBe constant, Z
bAnd Z
aBe respectively the number of teeth of ring gear 9 and sun gear 11.If obtain constant synchronous output speed, output speed n
bAlso can be defined as the known constant value, therefore by formula (1) as can be known, regulate change speed governing rotation speed n
aCan obtain the velocity ratio i of continuous variable
BxThereby, make whole wind power speed-increasing gearbox obtain continuous variable gear ratio, resultant gear ratio is i=i
X1* i
Bx, final power/torque is by 7 outputs of speedup box output shaft.
In sum, variable-speed ratio wind power speed increasing of the present invention provides suitable speed change and has become the continuous velocity ratio of torque, can realize the variable speed input, with the function of constant rotational speed output.Wherein, planetary differential speed regulating mechanism 4 adopts the speed change mode of speed regulation of power dividing and continuous velocity ratio, and the speed ratio of whole wind power speed-increasing gearbox is changed on request.With lower velocity shaft through the variable speed power after the fixed speed ratio speedup box raising speed after differential speed regulation mechanism has the speed governing of continuous velocity ratio speed change, can obtain constant output speed to the synchronizing wire winding generator.Therefore, the present invention has realized the speedup function of the tooth case continuous variable speed ratio of variable speed input constant rotational speed output, connects the constant electric energy of synchronous generator output frequency with after reaching under the wind wheel Variable Velocity Condition.
The various embodiments described above only are used for explanation the present invention; the structure of each parts, size, setting position and shape all can change to some extent; on the basis of technical solution of the present invention; all improvement and equivalents of individual component being carried out according to the principle of the invention all should not got rid of outside protection scope of the present invention.
Claims (7)
1. variable-speed ratio wind power speed increasing, it comprises the fixed speed ratio wind power speed-increasing gearbox, it is characterized in that: the afterbody output shaft of described fixed speed ratio wind power speed-increasing gearbox connects one-level planetary differential speed regulating mechanism through a parallel-axes gears driving mechanism that is made of with the parallel axes driven gear the parallel axes driving gear; Described planetary differential speed regulating mechanism comprises planet carrier, speed governing live axle, is arranged on the speed-adjustable driving device of described variable-speed ratio wind power speed increasing outside, and is arranged by the differential planetary that ring gear, planet wheel and sun gear form; Described planet carrier will be passed to by the power/torque that described parallel-axes gears driving mechanism is passed to described differential planetary row, and described planet carrier rotating speed is described differential planetary row input speed; Described sun gear connects described speed-adjustable driving device by described speed governing live axle, and described speed-adjustable driving device drives described sun gear makes it obtain the speed governing rotating speed; The constant output speed of formation was exported it by described ring gear after described differential planetary row was synthetic with speed governing rotating speed and input speed through the speedup box output shaft.
2. a kind of variable-speed ratio wind power speed increasing as claimed in claim 1, it is characterized in that: described planetary differential speed regulating mechanism is the driving mechanism of two-freedom.
3. a kind of variable-speed ratio wind power speed increasing as claimed in claim 1 is characterized in that: the speed change mode of speed regulation of described planetary differential speed regulating mechanism employing power dividing and continuous velocity ratio.
4. a kind of variable-speed ratio wind power speed increasing as claimed in claim 2 is characterized in that: the speed change mode of speed regulation of described planetary differential speed regulating mechanism employing power dividing and continuous velocity ratio.
5. as claimed in claim 1 or 2 or 3 or 4 a kind of variable-speed ratio wind power speed increasing, it is characterized in that: described speed-adjustable driving device adopts variable displacement pump or the speed-adjustable motor that can export continuous variable speed driving force.
6. as claimed in claim 1 or 2 or 3 or 4 a kind of variable-speed ratio wind power speed increasing is characterized in that: described fixed speed ratio wind power speed-increasing gearbox adopt two-stage fixed speed ratio wind power speed-increasing gearbox and three grades of fixed speed ratio wind power speed-increasing gearboxes one of them.
7. a kind of variable-speed ratio wind power speed increasing as claimed in claim 5 is characterized in that: described fixed speed ratio wind power speed-increasing gearbox adopt two-stage fixed speed ratio wind power speed-increasing gearbox and three grades of fixed speed ratio wind power speed-increasing gearboxes one of them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100397347A CN102146892B (en) | 2011-02-17 | 2011-02-17 | Variable-speed ratio wind power speed increasing box |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100397347A CN102146892B (en) | 2011-02-17 | 2011-02-17 | Variable-speed ratio wind power speed increasing box |
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| Publication Number | Publication Date |
|---|---|
| CN102146892A CN102146892A (en) | 2011-08-10 |
| CN102146892B true CN102146892B (en) | 2013-03-06 |
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|---|---|---|---|
| CN2011100397347A Active CN102146892B (en) | 2011-02-17 | 2011-02-17 | Variable-speed ratio wind power speed increasing box |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305180B (en) * | 2011-08-31 | 2013-07-31 | 国电联合动力技术有限公司 | Control method and system of differential gear box speed regulation type synchro wind generating set |
| CN105804936A (en) * | 2016-05-18 | 2016-07-27 | 四川大学 | Front speed regulating type synchronous wind generating set |
| CN106949015B (en) * | 2017-05-08 | 2019-04-12 | 新昌县羽林街道维新机械厂 | A kind of wind-driven generator with speed-regulating function |
| CN109340341A (en) * | 2018-11-16 | 2019-02-15 | 中国船舶重工集团公司第七0三研究所 | A kind of planetary differential Constant-Speed Unit |
| CN109386434B (en) * | 2018-11-22 | 2024-03-26 | 明阳智慧能源集团股份公司 | Compact semi-direct-drive wind power gear box multi-shaft power split transmission structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201129406Y (en) * | 2007-12-17 | 2008-10-08 | 南京高速齿轮制造有限公司 | Step-up gear box for wind power generator |
| FR2944845A1 (en) * | 2009-04-23 | 2010-10-29 | Roumen Antonov | Speed varying device for electrical generator, has epicyclic gear train and electrical control machine for maintaining constant or variable output speed based on determined operating mode irrespective of input speed |
| WO2010027618A3 (en) * | 2008-09-05 | 2011-01-20 | General Electric Company | System and assembly for power transmission and generation in a wind turbine |
| CN202001208U (en) * | 2011-02-17 | 2011-10-05 | 国电联合动力技术有限公司 | Variable-speed ratio wind power speed increasing box |
-
2011
- 2011-02-17 CN CN2011100397347A patent/CN102146892B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201129406Y (en) * | 2007-12-17 | 2008-10-08 | 南京高速齿轮制造有限公司 | Step-up gear box for wind power generator |
| WO2010027618A3 (en) * | 2008-09-05 | 2011-01-20 | General Electric Company | System and assembly for power transmission and generation in a wind turbine |
| FR2944845A1 (en) * | 2009-04-23 | 2010-10-29 | Roumen Antonov | Speed varying device for electrical generator, has epicyclic gear train and electrical control machine for maintaining constant or variable output speed based on determined operating mode irrespective of input speed |
| CN202001208U (en) * | 2011-02-17 | 2011-10-05 | 国电联合动力技术有限公司 | Variable-speed ratio wind power speed increasing box |
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| CN102146892A (en) | 2011-08-10 |
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Owner name: NATIONAL ELECTRIC NEW ENERGY TECHNOLOGY INSTITUTE Effective date: 20130809 |
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Effective date of registration: 20130809 Address after: 100039, No. 1, building 16, No. 8 West Fourth Ring Road, Beijing, Haidian District Patentee after: Guodian United Power Technology Co., Ltd. Patentee after: Guodian New Energy Technology Institute Address before: 100039, No. 1, building 16, No. 8 West Fourth Ring Road, Beijing, Haidian District Patentee before: Guodian United Power Technology Co., Ltd. |
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Effective date of registration: 20140826 Address after: 100000 Beijing City, Zhongguancun, South Street, building B, building No., level 56, level 16 Patentee after: Guodian United Power Technology Co., Ltd. Address before: 100039, No. 1, building 16, No. 8 West Fourth Ring Road, Beijing, Haidian District Patentee before: Guodian United Power Technology Co., Ltd. Patentee before: Guodian New Energy Technology Institute |